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29.7 MW Wind operating in Worth, IA — Midcontinent Independent Transmission System Operator, Inc..
29.7 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2008
Operating Since
Coordinates
43.3662, -93.3219
County
Worth, IA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Madison Gas & Electric Co | EDPR Renewable Energy Sources of Greece 1 Sole Proprietorship | — |
| Owner(s) | Madison Gas & Electric Co | Entergy | — |
| Status | Operating | operating | — |
Top of Iowa Windfarm III is a 29.7 MW wind power plant located in Worth County, Iowa. The plant began operating in 2008 and is owned by Entergy, with Madison Gas & Electric Co. listed as the EIA operator. It consists of a single generator utilizing onshore wind turbine technology. The facility is connected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and resides within the MRO NERC region.
The wind farm's turbines have a hub height of 78 meters and a rotor diameter of 87 meters. The turbines were manufactured by Gamesa, model G87-2.0. In its latest year of reported generation, the plant produced 43,805 MWh, achieving a capacity factor of 16.8%. Financial data indicates an installed cost of $2055.57 per kW, based on FERC filings. Top of Iowa Windfarm III is ranked 78th out of 122 wind plants in Iowa and 1022nd out of 1424 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
161.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
5.2K MWh
Latest Month
43.8K MWh
Annual Generation
16.8%
Capacity Factor
Wind · Madison Gas and Electric Company · Data from 2015–2023
$2,037/kW
Installed Cost
$15.7/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Worth County Substation · 161 kV
Substation Distance
< 10 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTW.TOI_MGEO
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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